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https://issues.apache.org/jira/browse/FLINK-8451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16381768#comment-16381768
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ASF GitHub Bot commented on FLINK-8451:
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Github user twalthr commented on the issue:
https://github.com/apache/flink/pull/5567
@StephanEwen a tuple arity would be enough if the tuple serializer would
only serialize tuples but it also serializes case classes and POJOs. Wouldn't
be the fully qualified name better? But yes writing classes should be avoided.
> CaseClassSerializer is not backwards compatible in 1.4
> ------------------------------------------------------
>
> Key: FLINK-8451
> URL: https://issues.apache.org/jira/browse/FLINK-8451
> Project: Flink
> Issue Type: Bug
> Components: Type Serialization System
> Affects Versions: 1.4.0, 1.5.0
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Blocker
> Fix For: 1.5.0, 1.4.2, 1.6.0
>
>
> There seems to be problems with the updated Scala version and the
> CaseClassSerializer that make it impossible to restore from a Flink 1.3
> savepoint.
> http://mail-archives.apache.org/mod_mbox/flink-user/201801.mbox/%3CCACk7FThV5itjSj_1fG9oaWS86z8WTKWs7abHvok6FnHzq9XT-A%40mail.gmail.com%3E
> http://mail-archives.apache.org/mod_mbox/flink-user/201801.mbox/%3C7CABB00B-D52F-4878-B04F-201415CEB658%40mediamath.com%3E
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